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Fauble2000

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    Stock Payload Fraction Challenge {1.3.x Reboot}

    in KSP1 Challenges & Mission ideas

    Posted · Edited by Fauble2000
    typo

    28.23% Rocket Only (no nukes)

    I figured out how to build an open-ended fairing and stuffed most of the components into that.

    The advantages of the open ended fairing are enormous. They allow you to cluster up to twelve 1.25m engines around a central core, which makes up part of the payload. these engines will have thrust vectors directed just outside the outer edge of a 2.5m lofting stage. This enabled me to house 12 Darts and 3 Vectors under one fairing just a touch wider than 3.75m. No need for nosecones other than the forward fairing, (which may benefit from replacement with stock adapters, though it seems to me that a well tapered fairing offers superior aerodynamics).

    I could probably push the fraction well above 29% by getting rid of the big orange tank, adding a fourth tier of engine-less tanks and optimizing the staging and flight profile. one might also consider dropping vector engines one at a time mid flight. Though this will introduce thrust asymetry, it's nothing the vectors can't compensate for.
     


    Album a/up2eT will appear when post is submitted

    Stock Payload Fraction Challenge {1.3.x Reboot}

    in KSP1 Challenges & Mission ideas

    Posted

    5 hours ago, SanderB said:

    How do you decouple the side boosters with vertical decouplers? I don't see it from the screenshots. Could you post a craft file? I'm having difficulty reproducing this craft.

    How do I upload the craft file?
    In the mean time, the decouplers were actually TR-V2s mounted to octagonal struts. Also, everything was stitched together using advanced tweakables auto-strut with rigid attachment enabled to improve rigidity.

    Stock Payload Fraction Challenge {1.3.x Reboot}

    in KSP1 Challenges & Mission ideas

    Posted · Edited by Fauble2000

    On 11/13/2017 at 11:04 AM, ATEC said:

    - The payload MUST be a DEAD WEIGHT until decoupling and after that only the usage of RCS and/or SAS is allowed to fine-tune the orbit

    This seems unclear. The rule seems to allow RCS to raise the Pe to the requisite orbit. What parts are and are not allowed?

    Are batteries , solar panels, or RTGs allowed?
    Are reaction wheels allowed?
    What about Probe bodies?
    Nose cones / fairings?
    Control fins?
    Passive fins?
    If a probe body is allowed, then what about using said probe body's reaction wheels to provide torque?

    Personally, I would clarify by prohibiting everything but unused fuel tanks, passive aerodynamics / fairings, and decouplers, and one probe body (KER gets weird if you don't allow this).

    Smallest plane (Season One)

    in KSP1 Challenges & Mission ideas

    Posted

    On 8/2/2016 at 3:52 PM, CanOmer said:

    In my first test:

      Reveal hidden contents

     

    mass: 0.646 tones

    time: 2.42 min (complete stop)

    50 - 1.938 - 2.42 = 45.642

    I will post images after I improve my record. I wrote the result right away because I suprised that I already made it to top in the first try.

     

    Last test:

    mass: 0.469 tones

    time: 2.15 min (complete stop)

    50 - 1.407 - 2.15 = 46.443

    There can be better score with smaller wings but landing would be harder. Fuel is 5 units.

    Are you using the battery as a skid? You could swap the battery for a trus, as long as the engine is running there's plenty of electric.

     

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